AK9242NK

MP

AFE with Dual 16-bit 1.1MSPS ZDS A / D Converter

AFE with Dual 16-bit 1.1MSPS ZDS A / D Converter

MP

Description

The AK9242NK is an analog front end that is optimized for high resolution encoders. 
ZDS A / D converter AK9242NK integrates 2 channel simultaneous sampling A / D converter, a programmable gain amplifier (PGA) and a transimpedance amplifier for current input in a small 4mm x 4mm QFN package. Current / Voltage input for the AK9242NK can be selected. In addition, it has polar coordinates output function (angle calculation algorithm). 
The AK9242NK realizes 16-bit resolution while supporting the sampling rate up to 1.1MHz. A small high accuracy encoder can easily be designed with the AK9242NK. A pin compatible lineup, the AK9243NK (14-bit) is also available.
(*) ZDS | Zero Latency Delta Sigma. ,
 A ZDS A / D converter realizes ultrafast response of SAR while maintaining high accuracy conversion like a delta-sigma converter, based on AKM’s accumulated experience and know-how in analog-digital LSI technology. It contributes to improving the speed and the accuracy of negative feedback circuits. It has long acquisition time comparing with an SAR A / D converter, reducing input buffer load of the IC. Small and high accurate motor systems can be designed with a ZDS A / D converter.
(AKM is the Asahi Kasei Microdevices Corporation)

Key Features

  • Zero Latency Delta Sigm type modulation ADC.
  • Angle operation algorithm.
  • High precision conversion, high speed response.

Applications

  •                                 High speed and high accuracy in negative feedback system.
                                

Specifications

Part Number
AK9242NK
Number of Channels
2
Resolution [bit]
16
Speed [MSPS]
1.1
Power Supply Voltage (MIN.) [V]
4.2 / 2.7
Power Supply Voltage (TYP.) [V]
5.0 / 3.0
Power Supply Voltage (MAX.) [V]
5.5 / 5.5
Power Consumption [mW]
505
Control Interface
SPI
Package Size [mm(mm2)]
4 × 4 (16)
Other

                                
Operating Temperature [℃]
-40 to 105
Device Package
HWQFN
Number of Pins
24

Product Information

Part Status
MP
Pb Free
Yes
Halogen Free
Yes
MSL
MSL2
Packaging
TAPE
JEDEC Standard Packaging
Compliant
Minimum Order Quantity [pcs.]
1000
Replacement P/N

                                

Block Diagram

Block Diagram